Glucose-C6H12O6
Glucose is a type of sugar. Like all types of sugar, glucose can cause weight gain to people who consume too much of it and can even give them high blood pressure. Too much glucose can cause diabetes. Sugars such as glucose can cause obesity if the consumer consume too much as a daily diet.
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Citations:
http://www.engin.umich.edu/dept/che/research/savage/Fernando/glucose.jpg

http://diabetes.webmd.com/blood-glucose